Carrier for harvester-platforms



(No Model.) 2 Sheets-Sheet 1.

M. DEW.

CARRIBR FOR HARVESTER PLATPORMSI. No. 390,010. Patented Sept. 25. 1888.

Tag]- W 2112 :5565: jnuenor:

Mariah .Dea

(No Model.) 2 Sheets-Sheet 2. M. DEW.

G ARRIBR FOR HARVESTER PLATFORM-S. No. 390,010. Patented Sept. 25, 1888.

Wl 65565: lmxenor:

- Mar'n D l V UNITED STATES PATENT OFFICE,

MARTIN DEW, GASS CITY, MICHIGAN.

CARRER FOR HARVESTER-PLATFORMS,

SPECIFICATION forming part of Letters Patent No. 390,010, date& September 25, 1888.

Application filed August 524, 1887. Serial No. 2-l7,748. (Ne model.)

To all whom it may concern- Be it known that I, MARTIN Dnw, of Cass City, in the county of Tuscola and State of Mchigan, have invented new and useful Improvements in Garrier Attachrnents to Harvester Platforms; and I do herebydeclare that the following is a full, clear, and exact description thereof, reference being had to the accompanyiug drawings, which form a part of this specification.

This invention relatcs to certain new and useful improvements in carriers for harvesterplatforms.

The object of the invention is to provide a harvesterplatform with a carrier and clearingarm so constructed that they willautomaticall y in the forward travel of the machine clear from the platform and divider-board the cut grain as it falls upon them and deliver it to a binding mechanism or other grain-receptacle at the side of the machine.

To this end theinvention consistsin the peculiar arrangement of rock-shafts transversely j ournaled in the platform,said rock-shafts carrying a series of curved carrier -arms and adapted to be partially rotated in succession in order that one set of arms may pick up and advanee the grain delivered to then by the preceding set; also in the peculiar Construction and application ofa clcaring-arm for the divider-board, and in the peculiar construetion, arrangement, and combination of the parts, all as more fully hereinafter set forth.

Figure 1 is a plan of a harvesterplatform provided with my improved carrier. Fig. 2

is a Vertical section on the line m a', Fig. 1.

Fig. 3 is a similar view on the line 7 y, same figure. Fig. et is a detail perspective showing Construction and arrangement of mechanism for Operating the roclshafts. Fig. 5 is a perspective View showing manner of securing the carrierarms to the rock-shafts. Fig. 6 is a perspeotive View showing the cam-wheel for actuating the curved clearing-arn of the divider-board. Fig. 7 is a diagram showing relative positions of the carrier arms as in the act of advancing the grain.

In the accompanying drawings, which form a part of this specification, A represents the platform of a harvester provided with the divider-board B, which has a rearward extension, B'. This platform consists of a solid or close bottom and a slatted top, as shown, there being sufficient space left between the two to receive the rock-shafts, hereinafter described.

At the rear sideof the platform is constructed a suitable housing or boxing, 0, in which is journaled, in proper bearings, the shaft D, designed to be driven by suitable connection from the driving mechanism of the harvester. This shaft has secured to it a series of heads, E, arranged spirally, as shown, and provided with tangential and parallel arms F. The two arms of each head are in different transverse and tangential planes. The onter end of this shaft D carries a wheel, G, provided with a cam-groove, G', in one face, (see Fig. 6,) with which engagcs the pin a of the sliding bar H, which has a reciprocating movement upon the extension B' of the divider-board in suitable brackets or guides Secured thereto. This bar H passes through brackets b, and is provided at the end opposite the cam-wheel with a rack, c, upon its upper edge, which engages with the segmental raok d upon the lower end of the eurved arm I, which is pivoted to the extension B', and has a movement through the slot e in the divider-board B, the latter being provided with the rearwardly-projecting curved guide-rod J. i

K are a series of rockshafts journaled across the platform bcneath the slatted top, and these rock-shafts are each provided with a series of curved carrier-arms, L. The rear ends of the rock-shafts K project into the housing O, and have secured upon them the double cross-heads M, by means of which in the operation of the device theseries of rockshafts are successivo] y partiall y rotated. In practice, the parts being constructed and arranged substantially as described and suitable connection being made to drive the shaft D, the operation is as follows: As the harvester moves forward and cuts the grain, the latter falls upon the platform, and the shaft D being in motion the arms Fare so timed that in the rotation of such shaft one of said arms strikes against one arm of the cross-head of the rockshaft next to the divider-board. This causes the carrier-arms of that shaft to pass up through the slatted top of the platform and push the grain ahead of them, so that it may be taken up by the next sncceeding series of carrierarms of the nextshaft, and so on until the grain IOO has oeen delivered at the end of the platform to the binding n'echauism. As each of the rook-shafts is caused to partially rotate when the terminus of the forward movement is rcached, the carrier-arms should remain stationary in such position (before being returned to their horizontal position under the action of the arm F upon the shaft D, which compels such a movement) until the next series of earrier-arms shall have made so much of the forward movement as will be su fficient to Carry forward and bring within the eurve of the latter the grain which was advanced or delivered by the forner.

The rotation of the shalt D inparts a similar motion to the cam-grooved wheel G, and the latter communicates a reeiproeating motion to the bar H. This, by reason of the eonnec tions described,neeessarily compels the curved arm I to rock ou its pivot through the slot in the divider-board. This is for the purpose of eleariug off any cut grain that may fall upon the divider-hoard or that might, in consequence of the grain being lodged or taugled, rest upon the divider-board, the guide-red J direeting such grain to the platform, where it is taken up and delivered by the carriers described to the other end of the platform.

u "What I claim as my invention isl. The combiuation, with a harvester-platform, slotted asdeseribed, of a series of rockshafts jourualed transversely of said platform and beneath the top of the same, carrier-arms on said shafts Operating through the Slots of the platfornnand a cross-head on the end ofeaeh of said shafts, and a rotary shaft at right angles to the rock-shafts provided with arms arranged in different planes transverscly of said shaft, whereby as the shaft rotates these arms strike first on one arm of the erosshead and then on the other to oscillate the rock-shafts, substantally as and for the purpose specified.

2. The combination, with a harvester-platform, slotted as described, of a series of rockshafts journaled transversely of said platform and beneath the top of the same, carrier-arms L on said shafts Operating through the slots ot the platform, a cross-head on the end of each of said shafts, a rotary shaft at right angles to the rock-shafts, and pairs of tangential arms arranged in spiral form thereon and adapted to strike said cross-head first on one arm to raise the arms L above the platform and then ou the other arm to lower said arms below the platform, substantially as and for the purpose specified.

3. The eonbinatiou, with the platform and the diVider-board, of the clearing-arn I, the rack d thereon, the bar H rack c thereon, transvcrse shaft D, and eonneotions, consisting of the cam-grooved wheel G- and pin (L, substantially as described, between said shaft and bar II, substautially as and for the purpose specified.

MAPJFIN DEW.

Witncsses:

JOHN ANYON, DELL LEONARD. 

